2009 BMW Z4 SDRIVE30I winter tires

Wheels and tires
194
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to
a level of performance which all passenger car
tires must meet under the Federal Motor Vehi-
cle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the
laboratory test whee l than the minimum
required by law.
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive speed,
underinflation, or excessi ve loading, either sep-
arately or in combination, can cause heat
buildup and possible tire failure. <
RSC – Run-Flat Tires
You will recognize Run-Flat Tires by a circular
symbol containing the letters RSC on the side
of the tire, refer to page195.
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer tires.
XL
Designation for specia lly reinforced tires.
Tire condition
Inspect your tires frequently for tread wear,
signs of damage and for foreign objects lodged
in the tread. Check the tread depth.
Minimum tread depth
The tread depth should not drop below 1/8 in/
3mm, although, for exam ple, European legisla-
tion only specifies a minimum tread depth of 1/16 in/1.6 mm. At tread depths below 1/8 in/
3 mm there is an increased risk of high-speed
hydroplaning, even when only small amounts of
water are present on the road surface.
When winter tires wear down past a tread depth
of 1/6 in/4 mm, they become perceptibly less
suitable for winter conditions. In the interest of
safety, new tires sh
ould be installed.
Wear indicators in the ba se of the tread groove
are distributed around th e tire's circumference;
the letters TWI, for Tread Wear Indicator, on the
tire's sidewalls identify tires that incorporate
these wear indicators. On ce the tire tread has
worn down to the wear indicators, the tire has
worn to a depth of 1/16 in/1.6 mm.
Wheel/tire damage
Please note that low-pr ofile tires cause wheels,
tires and suspension parts to be more suscep-
tible to road hazard and consequential
damages.
Unusual vibrations encountered during normal
vehicle operation can indi cate tire failure or
some other vehicle defect. This can, for exam-
ple, be caused by driving over curbs. The same
applies to any other abnormal road behavior,
such as pulling severely to the right or left.
In these cases, reduce speed immedi-
ately and have wheels and tires thor-
oughly checked. To do so, drive carefully to the
nearest BMW center or tire shop that works
according to BMW repair procedures with cor-
respondingly trained personnel. If necessary,
have the vehicle towed there.
Otherwise, tire damage can be extremely dan-
gerous for vehicle occu pants and other road
users. <

Mobility
195Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Tire age
For various reasons, such as the development
of brittleness, BMW recommends tire replace-
ment after no more than 6 years, regardless of
the actual wear of the tires.
The manufacturing date of tires is contained in
the tire coding:
DOT ... 0709 means that the tire was manufac-
tured in week 7 of 2009.
Run-Flat Tires
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall.
Run-Flat Tires comprise a conditionally self-
supporting tire and a special rim. The reinforce-
ment in the sidewalls ensures that the tire can
continue to be used su bject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire, page 81.
New wheels and tires
Have new wheels and tires installed only
by your BMW center or tire shop that
works according to BMW repair procedures
with correspondingly trai ned personnel. If this
work is not carried out properly, there is a dan-
ger of subsequent dama ge and related safety
hazards. Make sure that the new wheels are bal-
anced. <
Retreaded tires
BMW recommends that you do not use
retreaded tires, since driving safety may
be impaired. The causes for this include poten-
tially different tire casi ng structures and often
wide variations in tire ag e, which can result in a
limited service life. <
Correct wheels and tires
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, no spare wheel is available. Your
BMW center will be glad to advise you.
BMW recommends that you use only
wheel and tire combinations that BMW
has tested and approved for your particular
vehicle. Variations in factors such as manufac-
turing tolerances mean that even wheels and
tires with identical official size ratings could
actually have different dimensions, which could
lead to body contact and thus to severe acci-
dents. If non-approved wheels and tires are
used, BMW cannot evaluate their suitability,
and therefore cannot guarantee their driving
safety. <
You can inquire about the right wheel/tire com-
bination at your BMW center.
The correct combination of wheels and tires is
also necessary to ensure reliable operation of
various vehicle systems such as ABS, DSC
or TPM.
To maintain good handling and vehicle
response, use only tires of a single brand and
tread configuration. After a tire has been dam-
aged, mount the previous wheel and tire combi-
nation again as soon as possible.
Wheels with Tire Pressure Monitor
TPM electronics
When mounting new tires or changing over
from summer to winter tires, or vice versa, only
use wheels with TPM electronics; otherwise the
Tire Pressure Monitor may not be able to detect
a puncture, refer to page 82. Your BMW center
will be glad to advise you.

Wheels and tires
196
Recommended tire brands
Certain makes of tire are recommended by
BMW for each tire size. They are marked with a
clearly visible BMW designation on the sidewall
of the tire.
When properly used, these tires meet the high-
est standards in terms of safety and handling
characteristics.
Special characteristics of winter tires
BMW recommends winter tires for winter roads
or at temperatures below +45 7/+7 6.
Although all-season M+ S tires provide better
winter traction than summer tires, they gener-
ally fail to provide the same levels of cold-
weather performance as winter tires.
Pay attention to speed
Always comply with the speed limit for the
winter tires mounted on your car; failure
to do so could result in tire damage and acci-
dents. <
If the car is capable of speeds higher than that
permitted for the winter ti res, a label stating the
maximum permitted speed for the mounted
tires must be displayed in your field of view.
Specialist tire dealers and your BMW center
can supply these labels.
Storage
Always store wheels and tires in a cool, dry
place with as little exposure to light as possible.
Always protect tires agains t all contact with oil,
grease and fuels. Do not exceed the maximum
tire inflation pressure indicated on the sidewall
of the tire.
Swapping wheels between axles
BMW advises against swapping wheels
between the front and rear axles, even if all tires
have the same size, as th is could impair driving
characteristics. If the tires are of mixed sizes,
swapping wheels betwee n the axles is not per-
missible.
Snow chains*
Only certain fine-link sn ow chains have been
tested by BMW, classified as safe for use and
recommended. Consult your BMW center for
more information.
Snow chains must be mounted in pairs and on
the rear wheels only. Observe the manufac-
turer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
Do not initialize the Flat Tire Monitor if
snow chains are mounted, otherwise the
instrument might issue an incorrect reading.
When driving with snow chains, you may find it
helpful to activate DTC temporarily, refer to
page 78.<

Mobility
211Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
2.Pull out the bulb holder, see arrow, and
change the bulb.
3. Attach the bulb holder.
4. Reattach the cover.
License plate lamp, rear lamp, center
brake lamp and turn signal
These lamps use LED technology for operation.
In the event of a malfunction, please contact
your BMW center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel.
Changing wheels
Your BMW is equipped with Run-Flat Tires as
standard. This removes the need to change a
wheel immediately in the event of a puncture.
For information on continuing to drive with a
damaged tire, refer to Indica tion of a flat tire on
page 81.
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall, refer to
Run-Flat Tires, page 195.
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, no spare wheel is available. Your
BMW center will be glad to advise you. Refer
also to New wheels and tires, page 195.
The tools for changing wheels are avail-
able as optional accessories from your
BMW center. <
Jack mounting points
The jacking points are at the positions shown in
the illustration.
Lug bolt lock*
1Lug bolt for adapter
2 Adapter, in onboard tool kit
Removing the wind deflector
1.Remove the adapter 2 from the onboard
tool kit and insert it in the lug bolt.
2. Unscrew the lug bolt 1.
Remove the adapter after screwing the lug bolt
back on.
The code number is stamped on the front of the
adapter. Please note down this number and
keep it in a safe place in case the adapter should
get lost.

Everything from A to Z
230
Everything from A to Z
Index
"..." Identifies Control Display texts used to select
individual functions and
refers you to the page where
these texts can be found.
A
ABS Antilock Brake System 78
Acceleration assistant, refer to Launch Control 58
Accident, refer to Sending an Emergency Request 213
Activated-charcoal filter for
automatic climate
control 97
Adaptive Head Light 89
Additional connection of the music player in the mobile
phone 158
Additives
– coolant 200
Address for navigation,
entering 119
Adjusting temperature inside the car, refer to Air
conditioner 93
Adjusting temperature inside the car, refer to Automatic
climate control 95
Adjusting the thigh support 42
Adjusting the tone during audio operation, refer to
Tone control 138
Airbags 85
– indicator/warning lamp 87
– sitting safely 41
Air conditioner 92 Air conditioning mode
– air conditioner
93
– automatic climate control 95
– ventilation 94,97
Air distribution
– automatic 96
– individual 93
– manual 93
Air flow rate 93,96
Airing, refer to Ventilation 94
Airing, refer to Ventilation 94,97
Air outlets, refer to Air vents 92
Air pressure, refer to Tire
inflation pressure 190
Air recirculation, refer to Recirculated-air
mode 93,97
Air supply
– air conditioner 93
– automatic climate control 95
– ventilation 94,97
Air vents 92
AKI, refer to Fuel specifications 189
Alarm system 33
– avoiding unintentional alarms 34
–

interior motion sensor 34
– switching off an alarm 34
– tilt alarm sensor 34
Albums of music
collection 155
All-season tires, refer to Winter tires 196
AM, waveband 141
Ambient air, refer to Recirculated-air
mode 93,97
Antenna for mobile phone 164Antifreeze
– coolant
200
– washer fluid 61
Antilock Brake System ABS 78
Anti-theft alarm system, refer
to Alarm system 33
Anti-theft system 29
– for lug bolts, refer to Lug bolt
lock 211
Approved axle loads, refer to Weights 222
Approved gross vehicle weight, refer to Weights 222
Armrest, refer to Center
armrest 102
Arrival time, refer to Computer 66
Ashtray
– front 104
Assistance systems, refer to
Driving stability control
systems 78
AUC automatic recirculated-
air control 97
Audio 138
– controls 138
– switching on/off 138
– tone control 138
– volume 138
Audio device, external 102
Automatic
– air distribution 96
– air flow rate 96
– cruise control 61
– headlamp control 88
Automatic car washes 204
Automatic climate control 92
– automatic air distribution 96
Automatic curb monitor 46
Automatic recirculated-air control AUC 97

Reference 237
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Launch Control58
Leather care 206
LED Light-emitting diodes 208
Length, refer to
Dimensions 221
License plate lamp, replacing bulb 211
Light-alloy wheels 206
Light-emitting diodes LED 208
Lighter 104
– connecting electrical
appliances 104
Lighting
– instruments 90
– lamps and bulbs 208
– vehicle, refer to Lamps 88
Light switch 88
Limit, refer to Speed limit 74
Load securing equipment, refer to Securing cargo 114
Lockable lug bolts, refer to Lug bolt lock 211
Lock buttons, doors, refer to
Locking 32
Locking
– adjusting confirmation
signal 31
– from inside 32
– from outside 30
– without remote control, refer to Convenient access 35
Locking and unlocking doors
– confirmation signals 31
– from inside 32
– from outside 29
Low-beam headlamps 88
– automatic 88
Lower back support, refer to
Lumbar support 43
Lug bolt lock 211
Luggage compartment lid 32
– convenient access 35
– emergency release 33
– opening from inside 33
– opening from outside 33
– remote control 30
Lumbar support 43 LW, waveband
141
M
M+S tires, refer to Winter
tires 196
Maintenance, refer to Service Booklet
Maintenance system 202
Malfunction
– automatic transmission with
Steptronic 55
– tires 81
Malfunction warnings, refer to Check Control 73
Managing music 156
Manual air distribution 93
Manual car wash 205
Manual mode, automatic
transmission with
Steptronic 54
Manual operation
– door lock 32
– driver's door 32
– fuel filler door 188
– transmission lock 58
– transmission lock, automatic transmission 55
Manual transmission 53
Map display 130
Map for navigation
– changing scale 130
– entering destination 124
– interactive map 124
Master key, refer to Remote control with integrated
key 28
Maximum cooling 96
Maximum speed
– with winter tires 196M dual clutch transmission
with Drivelogic
– Launch Control 58
– manually releasing transmission lock 58
– neutral 57
– reverse gear 57
Measurements, refer to
Dimensions 221
Memory, refer to Seat and mirror memory 43
MENU button 16
Menus, refer to iDrive 16
Messages 170
Microfilter
– BMW Maintenance
System 202
– for air conditioner 94
– for automatic climate
control 97
Microfilter/activated-charcoal filter
– BMW Maintenance System 202
Mirror dimming feature 46
Mirrors 45
– automatic curb monitor 46
– exterior mirrors 45
– heating 46
– interior rearview mirror 46
–
memory, refer to Seat and
mirror memory 43
Mobile phone
– adjusting volume 167
– connecting, refer to Mobile phone, pairing 164
– installation location, refer to
Center armrest 102
– operation via iDrive 167
– pairing 164
– refer to separate Owner's Manual
Mobile phone, installation
location, refer to Center
armrest 102
Mobile phone, refer to
Telephone 164

Everything from A to Z
240
Roadside parking lamps
90
Roadworthiness test, refer to
Service requirements 69
Roof load capacity 222
Rope, refer to Tow-starting,
towing away 216
Rotary/pushbutton, refer to iDrive 16
Route 128,129
– bypassing sections 129
– changing 128
– changing criteria 128
– displaying streets or towns/
cities 129
– map display 130
– selecting 128
Route instructions, refer to Destination guidance
through voice
instructions 129
Route map, refer to Map display 130
Route section, changing 129
Route selection 128
RSC Runflat System
Component, refer to Run-
Flat Tires 195
Runflat System Component
RSC, refer to Run-Flat
Tires 195
Run-Flat Tires 195
– continuing driving with a damaged tire 82
– flat tire 81
– Flat Tire Monitor 81
– new tires 195
– replacing 195
– tire inflation pressure 190
– winter tires 196
S
Safety-belt height
adjustment 45
Safety belts 44
– damage 45
– indicator/warning lamp 45
– reminder 45
– sitting safely 41 Safety systems
– airbags
85
– Antilock Brake System ABS 78
– brake system 78
– driving stability control systems 78
– Dynamic Stability Control
DSC 78
– safety belts 44
Safety tires, refer to Run-Flat
Tires 195
Satellite radio 144
– enabling channel 144
– selecting channel 145
– storing channel 145
Saving fuel 110
Screen, refer to iDrive controls 16
Screw thread for tow fitting 215
SDARS, refer to Satellite
radio 144
Seat adjustment
– electric 42
– mechanical 42
Seat and mirror memory 43
Seat belt reminder, refer to
'Fasten safety belts'
reminder 45
Seat heating 43
Seats 41
– adjusting electrically 42
– adjusting the seats 42
– heating 43
– memory, refer to Seat and mirror memory 43
– saving a setting, refer to Seat and mirror memory 43
– sitting safely 41
Securing cargo 106
Securing the vehicle
– from inside 32
– from outside 29
Selecting new scale for navigation 130
Selector lever 56
– automatic transmission with Steptronic 54 Selector lever lock, refer to
Changing selector lever
positions, shiftlock 54
Selector lever positions
– automatic transmission with
Steptronic 54
Service, refer to Roadside Assistance 213
Ser
vice car, refer to Roadside
Assistance 213
Service data in the remote
control 202
Service Interval Display, refer
to Condition Based Service
CBS 202
Service Request 183
Service requirement display, refer to Condition Based
Service CBS 202
Service requirements 69
Services status 184
Servotronic 85
Settings
– changing on Control Display 75
– clock, 12h/24h mode 72
– DVD 149
– language 75
Settings and information 68
Shifting 57
Shifting, sport automatic
transmission 57
Shifting gears
– automatic transmission with
Steptronic 54
– manual transmission 53
Shiftlock
– automatic transmission, refer to Changing selector
lever positions 54
Shift paddles on steering wheel 57
Short commands for the voice
activation system 223
Short route in navigation, refer to Selecting route 128
Side airbags 85

Reference 241
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Side windows, refer to Windows 36
Signal horn, refer to Horn 10,11
Sitting safely 41
– with airbags 41
– with safety belts 41
Ski bag for convertible, refer to
Through-loading opening
with integrated transport
bag 105
Slot for remote control 50
Smokers' package, refer to
Ashtray 104
SMS 171
Snap-in adapter
– inserting/removing 174
– use 164
Snap-in adapter, refer to
Center armrest storage
compartment 102
Socket, On-Board Diagnosis
OBD 202
Socket, refer to Connecting electrical appliances 104
SOS, refer to Sending an Emergency Request 213
Sound output for
entertainment on/off 138
Spare fuses, 212
Spare fuses, refer to
Fuses 212
Special destinations 122
Speed
– Run-Flat Tires 82
– with winter tires 196
Speed limit 74
Speed limit warning, refer to Speed limit 74
Speedometer 12
Speed Volume 139
SPORT+ program, Dynamic Driving Control 79,80
SPORT program, Dynamic Driving Control 79,80
Sport program with sport
automatic transmission 57Spray nozzles, refer to
Cleaning windshield and
headlamps 60
Stability control, refer to Driving stability control
systems 78,79
Start/stop button 50
– starting the engine 51
– switching off the engine 52
Starting, refer to Starting the engine 51
Starting assistance, refer to Jump starting 214
Star

ting difficulties
– jump starting 214
Starting the engine
– start/stop button 50
State/province for navigation 119
Station, selecting
– radio 141
Status of this Owner's Manual
at time of printing 5
Steam jet 204,205
Steering wheel 46
– adjustment 46
– buttons on steering wheel 11
– lock 50
– locking with convenient access 35
– shift paddles 57
Steering wheel buttons, refer to Shift paddles 57
Steptronic, refer to Automatic transmission with
Steptronic 53
Storage 207
Storage compartments 102
Storage nets 104
Storing music 153
Storing seat positions, refer to Seat and mirror memory 43
Storing tires 196
Stowage, refer to Storage compartments 102
Stowing cargo 114 Street, entering,
navigation 120
Summer tires, refer to Wheels and tires 190
Surface ice, refer to Outside
temperature warning 64
SVCD 148
SW, waveband 141
Switches, refer to Cockpit 10
Switching off
– engine 52
Switching off the engine
– start/stop button 50
Switching on
– audio 138
– CD/DVD changer 138
– CD/DVD player 138
– radio 138
Symbols 4
– status information 20
– traffic bulletins for navigation system 131
T
Tachometer 64
Tailgate
– opening from inside 33
Tailgate, refer to Luggage compartment lid 32
Tail lamps 210
– replacing bulb 210
Tank contents, refer to Capacities 222
Technical data 220
– capacities 222
– dimensions 221
Technical modifications, refer to For your own safety 5
Telephone 164
– installation location, refer to Center armrest 102
– refer to separate Owner's
Manual
TeleService, activating 183
TeleService Diagnosis 180
TeleService Help 180